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学科主题: Environmental Sciences
题名: Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment
作者: Li, H ; Gu, JD
通讯作者: jdgu@hkucc.hku.hk
关键词: dimethyl isophthalate ; monomethyl isophthalate ; lsophthalic acid ; biodegradation ; biochemical cooperation ; plasticizers
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2007
卷: 380, 期:40546, 页:181-187
收录类别: sci
部门归属: Univ Hong Kong, Dept Ecol & Biodivers, Lab Environm Microbiol & Toxicol, Hong Kong, Hong Kong, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanog, LED, Key Lab Trop Marine, Guangzhou 510301, Peoples R China; Univ Hong Kong, Dept Ecol & Biodivers, Lab Environm Microbiol & Toxicol, Hong Kong, Hong Kong, Peoples R China
项目归属: LED
摘要: Two bacterial strains Klebsiella oxytoca Sc and Methylohacteritent mesophilicum Sr were isolated and identified from enrichment cultures using, dimethyl isophthalate (DMI) as the sole source of carbon and energy, and mangrove sediment as an inoculum. DMI was rapidly transformed by K. oxytoca Sc in the culture with formation of monomethyl isophthalate (MMI), which accumulated in the culture medium. M. mesophilicum Sr, incapable of utilizing DMI, showed high capability of degrading MMI to a transitory intermediate isoplithalic acid (IPA), which was further mineralized by this strain. The biochemical pathway of DMI degradation by these two bacteria in a consortium was proposed: DMI to MMI by K. oxytoca Sc, MMI to IPA by M. mesophilicum Sr, and IPA by both K. oxytoca Sc and Al. mesophilicum Sr based on the identified degradation intermediates. The consortium comprising K. oxytoca Sc and M. mesophilicum Sr was effective in mineralization of DMI. The results suggest that complete degradation of environmental pollutant DMI requires the biochemical cooperation between different microorganisms of the mangrove environment. (C) 2006 Elsevier B.V. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000247737700020
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5879
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Li, H; Gu, JD.Complete degradation of dimethyl isoplithalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment,SCIENCE OF THE TOTAL ENVIRONMENT,2007,380(40546):181-187
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文件名: Complete degradation of dimethyl isophthalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment .pdf
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